Yes, the Phoenix Module will require a gauge pod with at least a pyrometer. Keep in mind that the Gryphon programmer will also need a pyrometer probe installed in the exhaust manifold to display EGT.
As far as the Whisper Mode program goes, since you have an early single-shot truck, the whisper mode will work really well.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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